Valve



SepL 27, 1932. MULLER 1,879,413

vALvB Fi1ed Feb. 24. 1950 of a oroSS bar, oarfied fo1 feciI)rooation onthe posts 33. The S1ide 37 haS an o ening 38, vvhioh iS enlafged nearits u per endto forIn Shoulder 39. 11 StIId 10 enggeS the 10ver end ofthe SteIn 36 of tlle pTeSSure ieoe 35, ond hoS Teduced end 471 1oCatedin the oPening 38 of the croSS bar 37. The rednced )oftion 11 of thestud 40 forInS o Shonlder 2 vhioh oooperates Tvith the s110111CleI, 39iI1 the S1ide 37. The U per end of the plunger 17 is thfeaded foI'adiuStnlent into the Stud 4EO nd iS held in adinSted )oSitionS-by IneanSof a 1ook nut 13. 001n feSSion S TingS SPeot to the Openi11g, plungefSlidoble i11 the outer ond of the nipple and ehgageable vvith the fi1'Stvalve t0 o en the rst valve vvhen the lunger InoveS in one difeotion,the plunger PsSing thTough the OPening ond having InenS foI O ening t11eSecond valve vhen the )111ngoT IIloveS in n oPpoSite di rection, ondf1llid PTeSS1I'e aotL1ted 1TleoI1S II1ounted on tlle vlve CaSing ondooaoting Tvith the lungef t0 0 en the fi1St v1ve.

In teStin1ony tht I olai11 the foregoing aS lny ovn, I hve hereto fed11y SigI1atIlfe,

Sofround the poStS 33. The nPPer endS of the S ringS engage the ofoSSbar of lide 37, and the lovveI endS of the SpringS en gge WoShers 5Whioh Te sop OTted by nntS 4:6 thTeaded oI1 the PostS 33, adiuStableabllt Inents for the lovveI' endof the S fings th11S being rovided.

In ractical operation, So long S there iS a redetern1ined pfeSSure atthe inlet 31, the dio hragII1 30, the pfeSSure )iece 35, itS SteII1 36,the Stud 0, and the )111nger 17, ooo eTate t0 hold the v1ve 8 0 en, asShovvn in the dfaWing, fhe valvo23 being CloSed by the aotion of theSPring 25. Tndel' S11ch oi1'oL1IntanceS, the c00ling vvter 01' otlle1'ffofving InediI1II1 Can ente by vy of the inlet 2, aTld leave by vay ofthe olltlet 3, n obSeTvation Which Wn1be underStood redy when theoPening 5 nd the valve 8 aIe noted.

vvhen the reSSuTe is releadsed. in the inlet 31, then the dia hragn130Wi11 move up vvardly, the Paft 37 being oaTried tlI)vVafdly by the SringS the Spring9 CloSing t11e v1ve 8 0I1 the set and the plungef 17being oTried uPvvardly by the Slide or orosS bor 37. vvhen the plllngeI'17 moveS u vvordly, S ofoTesoid, the I111t 19 engageS t11e loWer end ofthe thiInble 18 and I'aiSeS the volve 23 to oI1 0 en )ositioI1, v7hereuon, Wter can HOW bkWy from the IneInbeT 3, into the niPple 10 I1d avaythTongh the drain 11. The vvater thuS oan be dravvn oIIt of oondensersof SiIIlilaT InaohineS, nd difou1tieS ariSing out of freezing vvatefInay be ovoided.

fIaving thuS deScribed the invention, vhat is claiIned is= In 3 devioeof the olaSS desofibed, a valve CSing hving n inlet and an olltlet, thecaS tWeen the inlet and the Outlet, the caSing being Su plied WithToiecting nip le cloSed at itS o11te' end, the nipPle ha ing a d oin,and there being an opening at the inner end of the ni le vvhichoon1InunioateS vvith the valve caSing on one Side of theSeot,o firStvalve.in the caSing, SPring ]1eaI1S fofoloSihg the firSt v1ve oSing, Sring Ineans for oloSing the flrSt valve againSt the first-SI)eCifiedSeat, in one direction, o Second valve in the ni le, S fing IneanS inthe I1i le fOT C10Sing the Seo ond valve iI1 an opPoSite diI'eotionvvith re-

